Astoria

Astoria is a Node.js 4chan board and thread monitor, useful for programatically keeping track of threads on a particular board, or posts in a particular thread, perfect for writing custom bots and scripts. Astoria makes use of, and aims to follow the guidelines of the 4chan API.

Installation 🔨

Add Astoria to your project by installing via npm.

npm install -S astoria

Usage ☕

Create a new instance of Astoria:

let Astoria = require('astoria')

let astoria = new Astoria([options])

Options 🔧

The Astoria client can be configured by passing an options object into the constructor with any of the following options.

Option	Type	Description	Default
interval	number	Interval between thread/board polling in seconds. Please be respectful to the server and don't set this below 10 seconds!	30
updatesOnly	boolean	If set to true, when listening to a board/thread, only new threads/posts will be sent. Otherwise all current threads/posts will be sent immediately.	false
unsubscribeOnNotFound	boolean	Whether to automatically stop listening if/when a board/thread returns 404	true
useHttps	boolean	Connect to the 4chan API using HTTPS. Only use this if you're using this with an application that also uses HTTPS.	false

Examples 🎈

• Check the /tv/ board for any new threads that get posted, every 5 minutes, and log out its id.

let astoria = new Astoria({
	interval: 60 * 5, // 5 mins
	updatesOnly: true // We're only interested in threads posted from now
})

astoria.board('tv')
	.listen((context, threads, err) {
		if (err) {
			return console.log(err)
		}

		threads.forEach(thread => console.log('New thread posted: ', thread.no))
	})

• Load a /ck/ thread and stop listening once we've loaded all current replies, logging out their id.

let astoria = new Astoria()

let unsubscribe = astoria.board('ck')
	.thread('11444231')
	.listen((context, posts, err) {
		if (err) {
			return console.log(err)
		}

		posts.forEach(thread => console.log('Post: ', post.no))

		// Stop listening
		unsubscribe()
	})

API 🔗

The following members exist on the Astoria client.

.options

The currently set options on the client. It is generally not recommended to overwrite these, but this property is available if needed.

.board(boardName): Astoria

Sets the board to listen to. This can be in a format such as /ck/ or ck. A board is required before the listener can begin.

Returns the current instance to allow method chaining.

Examples

astoria.board('/tv/') astoria.board('v')

.thread(threadNumber): Astoria

Sets the thread to listen to. This can either be in the format 12345678 or '12345678'. Additionally, if you wish to use an existing client which currently has a thread set, you can clear the thread by passing in null.

Returns the current instance to allow method chaining.

Examples

astoria.thread(55555555) astoria.thread('11115512')

.listen(function (context, updates, error)): function

Begin listening to the board (and thread) supplied to the client, based on the current options configuration. The listener creates a snapshot of this configuration, so if any of these values change after this method is called, it won't affect the listener.

Whenever new data is retrieved from 4chan, the callback will be invoked with the three arguments context, updates and error (described below).

Returns a function to unsubscribe from the listener. To stop listening to the board/thread, simply invoke the function.

context

context.board

The board the listener is attached to. e.g. /g/, /an/

context.thread

The thread the listener is attached to. e.g. 123512321, undefined

context.options

The options the listener is using. e.g. { interval: 30, useHttps: true, updatesOnly: true, unsubscribeOnNotFound: true }

updates

An array of new threads or posts. No matter what is being subscribed to, the following properties are available (if present) (with one exception). For example, the first post in a thread will also contain information about the thread, such as reply number, etc. (Table taken from 4chan API)

attribute	value	description	possible values	example value
no	integer	Post number	1-9999999999999	9001
resto	integer	Reply to	0 (is a thread OP), 1-9999999999999	0
sticky	integer	Stickied thread?	0 (no), 1 (yes)	1
closed	integer	Closed thread?	0 (no), 1 (yes)	1
archived	integer	Archived thread?	0 (no), 1 (yes)	1
archived_on	integer	Time when archived	UNIX timestamp	1344571233
now	string	Date and time	MM/DD/YY(Day)HH:MM (:SS on some boards), EST/EDT timezone	08\/08\/12(Wed)01:11
time	integer	UNIX timestamp	UNIX timestamp	1344570123
name	string	Name	text	moot
trip	string	Tripcode	text (format: !tripcode!!securetripcode)	!Ep8pui8Vw2
id	string	ID	text (8 characters), Mod, Admin, Manager, Developer, Founder	Admin
capcode	string	Capcode	none, mod, admin, admin_highlight, manager, developer, founder	admin
country	string	Country code	text (2 characters, ISO 3166-1 alpha-2), XX (unknown)	XX
country_name	string	Country name	text	Unknown
sub	string	Subject	text	This is a subject
com	string	Comment	text (includes escaped HTML)	This is a comment
tim	integer	Renamed filename	UNIX timestamp + milliseconds	1344402680740
filename	string	Original filename	text	OPisa
ext	string	File extension	.jpg, .png, .gif, .pdf, .swf, .webm	.jpg
fsize	integer	File size	0-10485760	2500
md5	string	File MD5	text (24 character, packed base64 MD5 hash)	NOetrLVnES3jUn1x5ZPVAg==
w	integer	Image width	1-10000	500
h	integer	Image height	1-10000	500
tn_w	integer	Thumbnail width	1-250	250
tn_h	integer	Thumbnail height	1-250	250
filedeleted	integer	File deleted?	0 (no), 1 (yes)	0
spoiler	integer	Spoiler image?	0 (no), 1 (yes)	0
custom_spoiler	integer	Custom spoilers?	1-99	3
omitted_posts	integer	# replies omitted	1-10000	33
omitted_images	integer	# image replies omitted	1-10000	21
replies	integer	# replies total	0-99999	231
images	integer	# images total	0-99999	132
bumplimit	integer	Bump limit met?	0 (no), 1 (yes)	0
imagelimit	integer	Image limit met?	0 (no), 1 (yes)	1
capcode_replies	array	Capcode user replies?	array of capcode type and post IDs	{"admin":[1234,1267]}
last_modified	integer	Time when last modified	UNIX timestamp	1344571233
tag	string	Thread tag	text	Loop
semantic_url	string	Thread URL slug	text	daily-programming-thread
since4pass	integer	Year 4chan Pass bought	4 digit year (YYYY)	2016

The exception being when subscribing to threads, each thread will have the following last_replies property on it.

attribute	value	description	possible values	example value
last_replies	array	The latest replies on the thread	array of post objects (see above)	[ { "no": 3214132, "com": "Im too big for this table" } ]

error

If an error occurred, this will contain an error object. Errors can include 404, to notify when threads have fallen off the catalog.

Contributing 🎁

This project is open to contributions. Please raise an issue before making a contribution. Additionally, please feel free to raise an issue if you find one. For each addition, please add an appropriate test.

License 💤

MIT

Futher reference 📖

Please read the 4chan API documentation for further information.